Originally Posted by amsNYC

The Columbus Circle location has been there for ages - although not sure if AA has always kept a desk there. It is a 'shared airline service center' and is a fairly grim facility.
The GC location - also shared service center - is a little cleaner, MUCH bigger and a great place to go for ticketing help. Back in the day of paper tickets I used to be there all the time with long waits. Last few times I went in the agents were waiting for customers - although I purposely waited till after 2pm to avoid any lunch rush.
ymmv